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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/clock/renesas,r9a06g032-sysctrl.txt
parentInitial commit. (diff)
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Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/Documentation/devicetree/bindings/clock/renesas,r9a06g032-sysctrl.txt b/Documentation/devicetree/bindings/clock/renesas,r9a06g032-sysctrl.txt
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+* Renesas R9A06G032 SYSCTRL
+
+Required Properties:
+
+ - compatible: Must be:
+ - "renesas,r9a06g032-sysctrl"
+ - reg: Base address and length of the SYSCTRL IO block.
+ - #clock-cells: Must be 1
+ - clocks: References to the parent clocks:
+ - external 40mhz crystal.
+ - external (optional) 32.768khz
+ - external (optional) jtag input
+ - external (optional) RGMII_REFCLK
+ - clock-names: Must be:
+ clock-names = "mclk", "rtc", "jtag", "rgmii_ref_ext";
+ - #power-domain-cells: Must be 0
+
+Examples
+--------
+
+ - SYSCTRL node:
+
+ sysctrl: system-controller@4000c000 {
+ compatible = "renesas,r9a06g032-sysctrl";
+ reg = <0x4000c000 0x1000>;
+ #clock-cells = <1>;
+
+ clocks = <&ext_mclk>, <&ext_rtc_clk>,
+ <&ext_jtag_clk>, <&ext_rgmii_ref>;
+ clock-names = "mclk", "rtc", "jtag", "rgmii_ref_ext";
+ #power-domain-cells = <0>;
+ };
+
+ - Other nodes can use the clocks provided by SYSCTRL as in:
+
+ #include <dt-bindings/clock/r9a06g032-sysctrl.h>
+ uart0: serial@40060000 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x40060000 0x400>;
+ interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ clocks = <&sysctrl R9A06G032_CLK_UART0>, <&sysctrl R9A06G032_HCLK_UART0>;
+ clock-names = "baudclk", "apb_pclk";
+ power-domains = <&sysctrl>;
+ };